EXTRACTION KINEIICS,MICELLIZATION AND INTERFACIAL CHARACTERISTICS OF A NEW EXTRACTANT SYSTEM

摘要

The interfacial kinetics,micellization and interfacial characteristics of the synergetic extrac-tion system,D2EHPA-H2RPA-Al3+,have been studied.H2RPA is a single long chain alkylphosphate.We have found that H2RPA in the mixed extractant system strongly exhibits thecharacteristics of micellization and interfacial activity.As the concentration of D2EHPA in-creases,the micellization and interracial activity of H2RPA decrease.The interfacialadsorption behaviour of H2RPA is opposite to that of D2EHPA.It was proved that the kine-tics of non-micella mixed extraction system was controlled by the chemical reaction at inter-face,and the reaction rate equation was obtained.This non-micella mixed extraction systemis expected to be used in the future.